Improved automatic sleeve feeding equipment

Abstract

The utility model provides an improved automatic sleeve feeding device which comprises an outer frame of a bilateral symmetry structure, a material conveying mechanism is arranged at the rear end of the top of the outer frame, and a hopper is arranged at the front end of the outer frame and located below the material conveying mechanism. A feeding mechanism used for lifting the sleeves in the hopper to the conveying mechanism step by step is arranged between the conveying mechanism and the hopper. A driving part of the feeding mechanism comprises a feeding motor and a double-output-shaft speed reducer, a supporting frame is fixedly arranged on the rear portion of the outer frame, the left end and the right end of the supporting frame are each fixedly provided with a sliding shaft, the sliding shafts are obliquely arranged backwards from bottom to top, two sliding blocks are arranged on the sliding shafts in a sliding mode, and the two sliding blocks are fixedly connected through a lifting supporting plate. The left output shaft and the right output shaft of the double-output-shaft speed reducer are each fixedly provided with a connecting plate, and the left connecting plate and the right connecting plate are each connected with the corresponding lifting supporting plate through a movable connecting rod. According to the feeding device, more efficient and stable feeding operation can be achieved.

Description

Technical Field

[0001] This utility model belongs to the field of steel bar connecting sleeve production technology, specifically relating to an improved automatic sleeve feeding device. Background Technology

[0002] In the field of construction engineering, the feeding operation of rebar connecting sleeves is a crucial step in ensuring the efficiency and quality of rebar connection construction. Existing sleeve feeding devices, such as the applicant's utility model-202322588711.2-a feeding device for rebar connecting sleeves, have gradually revealed some problems in practical applications.

[0003] The main problem is that the power source for sleeve feeding devices is often a cylinder, but on a construction site, using a cylinder as the power source means that an additional air source is required. This not only increases the overall requirements for the device's supporting facilities, but also makes the entire feeding system more complex, increasing the difficulty of on-site construction layout and management. More importantly, gas itself is compressible. During the movement of related components driven by the cylinder, this compressibility can easily cause jamming in the feeding mechanism, making the feeding action inconsistent and affecting the sleeve feeding efficiency.

[0004] Furthermore, the conveying mechanism in existing sleeve feeding devices is usually driven by a conventional motor, which typically has a fixed speed and cannot flexibly adjust the conveyor belt speed according to actual construction needs. Therefore, when faced with the task of feeding rebar connecting sleeves of different specifications and with different construction rhythm requirements, a single fixed speed is difficult to meet the diverse working conditions. Utility Model Content

[0005] The technical problem this invention aims to solve is to provide an improved automatic sleeve feeding device that addresses the issue of power source jamming in existing sleeve feeding devices, thereby achieving more efficient and stable feeding operations.

[0006] To solve the above-mentioned technical problems, the present invention includes:

[0007] An improved automatic sleeve feeding device includes an external frame with a symmetrical structure. A conveying mechanism that runs in a left-right direction is located at the top rear end of the external frame. A hopper is located at the front end of the external frame and below the conveying mechanism. A feeding mechanism for progressively lifting sleeves from the hopper onto the conveying mechanism is located within the external frame and between the conveying mechanism and the hopper. The feeding mechanism includes a drive unit, which includes a feeding motor and a dual-output-shaft reducer connected to the feeding motor. The dual-output-shaft reducer is fixedly located at the rear bottom end of the external frame, and its two output shafts are arranged in a left-right direction. A support frame is fixedly located at the rear of the external frame. A sliding shaft is fixedly located at each of the left and right ends of the support frame. The sliding shaft is inclined backward from bottom to top and has two sliders slidably mounted on it, and these two sliders are fixedly connected by a lifting support plate. A connecting plate is fixedly located on each of the left and right output shafts of the dual-output-shaft reducer, and the left and right connecting plates are respectively connected to the corresponding lifting support plates via a movable connecting rod.

[0008] Preferably, the top rear end of the outer frame has a groove for mounting the material conveying mechanism; the material conveying mechanism includes an active synchronous wheel, a passive synchronous wheel, a conveyor belt, and a servo motor; the active synchronous wheel and the passive synchronous wheel are respectively rotatably disposed on the left and right outer sides of the outer frame, and the active synchronous wheel and the passive synchronous wheel are connected by the conveyor belt; the servo motor is fixedly disposed on the left outer side of the outer frame and connected to the active synchronous wheel; the right end of the conveyor belt is the discharge end; the conveying surface of the conveyor belt is flush with the top surface of the outer frame.

[0009] Preferably, a rear baffle is fixedly installed on the top of the outer frame and behind the conveyor belt; a left baffle and a right baffle are respectively installed above the left and right ends of the conveyor belt; the left baffle is fixedly installed on the top surface of the outer frame and has a notch at the bottom for the conveyor belt to pass through; the right baffle is fixed on the front side of the rear baffle and has a gap between the right baffle and the conveyor belt for the sleeve to pass through, the height of the gap being greater than the outer diameter of the sleeve and less than the height of the sleeve.

[0010] Preferably, a material discharge chute is fixedly installed on the top right outer side of the outer frame and in front of the conveyor belt. The material discharge chute is inclined forward and downward, and its lower outlet is connected to the hopper. The right baffle is inclined to the right front, and its left and right ends are fixedly connected to the front side of the rear baffle and the outer baffle of the material discharge chute, respectively.

[0011] Preferably, the outer frame is provided with three fixed baffles of increasing height from front to back, and all three fixed baffles are parallel to the plane where the left and right sliding shafts are located; the first fixed baffle is spaced apart from the hopper, and the top surface of the first fixed baffle is higher than the bottom surface of the inner cavity of the hopper, and the rear of the hopper is open; the top surface of the third fixed baffle is not lower than the conveying surface of the conveying mechanism.

[0012] Preferably, a fixed support plate is fixedly installed at the top and rear end of each fixed baffle plate, and both the fixed support plate and the bottom plate of the hopper are inclined to the rear and downward.

[0013] Preferably, the feeding mechanism further includes two symmetrically arranged lifting base plates on the left and right; the rear ends of the two lifting base plates are respectively fixedly connected to the front ends of the two lifting support plates on the left and right; the front part of the lifting base plates is fixedly arranged with three lifting movable plates of increasing height from front to back, and these three lifting movable plates are all parallel to the fixed baffle plates; these three lifting movable plates are respectively slidably arranged in the gap between two adjacent fixed baffle plates and between the first fixed baffle plate and the hopper; when the feeding motor drives the slider to rise to the upper limit, the top surface of the three lifting movable plates is flush with the top surface of the three fixed baffle plates; when the feeding motor drives the slider to fall to the lower limit, the top surface of the first lifting movable plate is lower than the bottom surface of the inner cavity of the hopper.

[0014] Preferably, each lifting movable plate is fixedly provided with a lifting support plate at its top rear end, and the lifting support plate is tilted downwards and backwards.

[0015] Preferably, the bottom plate of the hopper is hollowed out; a chip storage box is provided at the bottom of the hopper, the bottom surface of the chip storage box is inclined forward and downward, and a chip discharge port is opened at the bottom of the front side of the chip storage box, and a chip guide plate is provided below the chip discharge port.

[0016] Preferably, a chip receiving tray is provided on the bottom front side of the outer frame.

[0017] The beneficial effects of this utility model are:

[0018] This invention uses a feeding motor to drive the feeding mechanism, eliminating the need for an external power source. The operation is smooth and reliable. The entire system employs a three-layer, progressively lifting design, significantly improving the lifting efficiency of the sleeve. The conveying mechanism is driven by a servo motor, allowing for adjustable conveying speed and wider adaptability. Attached Figure Description

[0019] Figure 1 This is a front structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the present invention;

[0022] Figure 4 This is a partial schematic diagram of the material conveying mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the feeding mechanism of this utility model.

[0024] In the diagram: 1. Conveying mechanism, 2. Feeding mechanism, 4. Hopper, 3. External frame, 5. Chip receiving tray, 6. Sleeve; 1-1. Conveyor belt, 1-2. Active synchronous pulley, 1-3. Servo motor, 1-4. Right baffle, 1-5. Left baffle, 2-1. Slider, 2-2. Lifting movable plate, 2-3. Feeding motor, 2-4. Movable connecting rod, 2-5. Support frame, 2-6. Sliding shaft, 2-7. Dual output shaft reducer, 2-8. Connecting plate, 2-9. Lifting support plate, 2-10. Lifting base plate, 2-11. Lifting pallet, 2-12. Fixed pallet, 3-1. Material drop chute, 3-2. Fixed baffle plate, 3-3. Rear baffle. Detailed Implementation

[0025] To facilitate understanding of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Those skilled in the art should understand that the described embodiments are merely illustrative and should not be construed as limiting the scope of this utility model.

[0026] like Figure 1-5 As shown, this utility model provides an improved automatic sleeve feeding device, including an outer frame 3 with a symmetrical structure. A conveying mechanism 1 that runs in the left-right direction is provided at the top rear end of the outer frame 3. A hopper 4 is provided at the front end of the outer frame 3 and below the conveying mechanism 1. A feeding mechanism 2 for lifting sleeves in the hopper 4 step by step onto the conveying mechanism 1 is provided in the outer frame 3 between the conveying mechanism 1 and the hopper 4. The feeding mechanism 2 includes a drive unit, which includes a feeding motor 2-3 and a dual-output shaft reducer 2-7 connected to the feeding motor 2-3. The dual-output shaft reducer 2-7 is fixedly installed on the outer frame. At the rear bottom end of the outer frame 3, the two output shafts of the dual output shaft reducer 2-7 are arranged along the left and right directions; a support frame 2-5 is fixedly installed at the rear of the outer frame 3; a sliding shaft 2-6 is fixedly installed at the left and right ends of the support frame 2-5, the sliding shaft 2-6 is inclined from bottom to top and two sliders 2-1 are slidably installed on it, and the two sliders 2-1 are fixedly connected by a lifting support plate 2-9; a connecting plate 2-8 is fixedly installed on the left and right output shafts of the dual output shaft reducer 2-7, and the left and right connecting plates 2-8 are respectively connected to the corresponding lifting support plate 2-9 through a movable connecting rod 2-4.

[0027] This invention abandons the traditional cylinder power source and adopts a drive method of feeding motor 2-3 combined with dual output shaft reducer 2-7, fundamentally solving the problem of feeding mechanism jamming caused by gas compressibility. The two output shafts of the dual output shaft reducer 2-7 connect to the connecting plate 2-8 and the movable connecting rod 2-4, driving the lifting support plate 2-9 to move up and down along the inclined sliding shaft 2-6, realizing the step-by-step lifting of the sleeve. The use of motor drive ensures the smoothness and continuity of the feeding process, improving production efficiency and feeding accuracy.

[0028] Three fixed baffle plates 3-2, arranged in ascending order of height from front to back, are located within the outer frame 3. These three fixed baffle plates 3-2 are parallel to the plane containing the left and right sliding shafts 2-6. The first fixed baffle plate 3-2 is spaced apart from the hopper 4, and its top surface is higher than the bottom surface of the inner cavity of the hopper 4, leaving the rear of the hopper 4 open. The top surface of the third fixed baffle plate 3-2 is not lower than the conveying surface of the conveying mechanism 1. A fixed support plate 2-12 is fixedly installed at the top rear end of each fixed baffle plate 3-2, and both the fixed support plate 2-12 and the bottom plate of the hopper 4 are inclined downwards and backwards.

[0029] From the hopper 4 to the conveying mechanism 1, the height of the three fixed baffles 3-2 increases sequentially, which can gradually guide the position of the sleeve and make it smoothly transition from the hopper 4 to the conveying mechanism 1, ensuring the stability of the sleeve during the conveying process.

[0030] The feeding mechanism 2 also includes two symmetrically arranged lifting base plates 2-10 on the left and right; the rear ends of the two lifting base plates 2-10 are fixedly connected to the front ends of the two lifting support plates 2-9 on the left and right respectively; three lifting movable plates 2-2 of increasing height are fixedly arranged at intervals from front to back on the front part of the lifting base plates 2-10, and these three lifting movable plates 2-2 are all parallel to the fixed baffle plate 3-2; these three lifting movable plates 2-2 are slidably arranged in the intervals between two adjacent fixed baffle plates 3-2 and between the first fixed baffle plate 3-2 and the hopper 4; when the feeding motor 2-3 drives the slider 2-1 to rise to the upper limit, the top surface of the three lifting movable plates 2-2 is flush with the top surface of the three fixed baffle plates 3-2; when the feeding motor 2-3 drives the slider 2-1 to fall to the lower limit, the top surface of the first lifting movable plate 2-2 is lower than the bottom surface of the inner cavity of the hopper 4. A lifting support plate 2-11 is fixedly arranged at the top rear end of each lifting movable plate 2-2, and the lifting support plate 2-11 is inclined to the rear and downward.

[0031] After the feeding motor 2-3 increases torque and reduces speed through the reducer 2-7, the circular motion is converted into up and down motion through the connecting plate 2-8 and the movable connecting rod 2-4, which controls the lifting movable plate 2-2 to move along the sliding shaft 2-6, and lifts the sleeve 6 to the conveying mechanism 1 step by step.

[0032] The cooperation of three lifting movable plates 2-2 and fixed baffle plate 3-2 enables multi-stage feeding of the sleeve. The sleeve can pass through the lifting movable plates 2-2 and fixed baffle plate 3-2 at different heights in sequence to gradually complete the feeding process from hopper 4 to conveying mechanism 1.

[0033] The top rear end of the outer frame 3 has a groove for installing the material conveying mechanism 1; the material conveying mechanism 1 includes an active synchronous wheel 1-2, a passive synchronous wheel, a conveyor belt 1-1, and a servo motor 1-3; the active synchronous wheel 1-2 and the passive synchronous wheel are respectively rotatably arranged on the left and right outer sides of the outer frame 3, and the active synchronous wheel 1-2 and the passive synchronous wheel are connected by transmission through the conveyor belt 1-1. The servo motor 1-3 is fixedly arranged on the left outer side of the outer frame 3 and connected to the active synchronous wheel 1-2. The right end of the conveyor belt 1-1 is the discharge end, which transports the loaded sleeve 6 to the designated location; the conveying surface of the conveyor belt 1-1 is flush with the top surface of the outer frame 3.

[0034] Compared to traditional conveyor belts driven by ordinary motors, this invention uses a servo motor 1-3 to drive the active synchronous pulley 1-2, enabling precise adjustment of the speed of the conveyor belt 1-1. This meets the diverse needs for sleeve conveying speed in different production scenarios, improving the coordination and efficiency of the entire production process. A groove is provided at the top rear end of the outer frame 3 to install the material conveying mechanism 1, making the overall structure more compact and rational. The design of the conveying surface of the conveyor belt 1-1 being flush with the top surface of the outer frame 3 facilitates stable transmission of the sleeves during the feeding process.

[0035] A rear baffle 3-3 is fixedly installed on the top of the outer frame 3 and behind the conveyor belt 1-1; a left baffle 1-5 and a right baffle 1-4 are respectively installed above the left and right ends of the conveyor belt 1-1. The left baffle 1-5 is fixedly installed on the top surface of the outer frame 3, and a notch is opened at the bottom of the left baffle 1-5 for the conveyor belt 1-1 to pass through; the right baffle 1-4 is fixed on the front side of the rear baffle 3-3, and a gap is provided between the right baffle 1-4 and the conveyor belt 1-1 for the sleeve 6 to pass through. The height of the gap is greater than the outer diameter of the sleeve 6 and less than the height of the sleeve 6. A material discharge chute 3-1 is fixedly installed on the top right outer side of the outer frame 3 and in front of the conveyor belt 1-1. The material discharge chute 3-1 is inclined forward and downward, and the lower outlet of the material discharge chute 3-1 is connected to the hopper 4. The right baffle 1-4 is inclined to the right front, and the left and right ends of the right baffle 1-4 are fixedly connected to the front side of the rear baffle 3-3 and the outer baffle of the material discharge chute 3-1, respectively.

[0036] The rear baffle 3-3, left baffle 1-5, and right baffle 1-4 effectively contain the sleeves on the conveyor belt 1-1 from three directions. The rear baffle 3-3 prevents the sleeves from falling backward during conveying. The left baffle 1-5 has a notch at the bottom, which does not affect the normal operation of the conveyor belt 1-1 and restricts the sleeves from shifting to the left, so that the sleeves can only be conveyed to the right. The right baffle 1-4 ensures that the sleeves can only pass horizontally, while vertical sleeves cannot pass, thus ensuring the consistency of sleeve transmission. By setting a material drop chute 3-1 on the top right outer side of the outer frame 3, sleeves that fail to pass through the right baffle 1-4 automatically slide down to the hopper 4 and rejoin the feeding process, improving the automation level of the equipment.

[0037] The bottom plate of the hopper 4 is hollowed out; a chip storage box is provided at the bottom of the hopper 4, the bottom of the chip storage box is inclined forward and downward, and a chip discharge port is opened at the bottom of the front side of the chip storage box. A chip guide plate 3-6 is provided below the chip discharge port, and a chip receiving plate 5 is provided at the bottom front side of the outer frame 3.

[0038] The hollow design of the bottom plate of hopper 4 allows iron filings and other impurities falling from the sleeve to fall directly into the chip collection box below, avoiding interference with the normal feeding of the sleeve. The bottom of the chip collection box is inclined forward and downward and has a chip discharge port for easy collection and discharge of iron filings; the chip receiving plate 5 and the iron filings guide plate 3-6 below the chip discharge port of the chip collection box work together to ensure that iron filings are properly collected, preventing them from scattering into the working area and ensuring the cleanliness of the environment around the equipment.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An improved sleeve automatic feeding device, comprising an outer frame (3) with left-right symmetrical structure, the top rear end of the outer frame (3) is provided with a feeding mechanism (1) running along the left-right direction; the front end of the outer frame (3) and below the feeding mechanism (1) is provided with a hopper (4), and the outer frame (3) and between the feeding mechanism (1) and the hopper (4) is provided with a feeding mechanism (2) for lifting the sleeves in the hopper (4) to the feeding mechanism (1) step by step; characterized in that: The feeding mechanism (2) comprises a driving part, the driving part comprises a feeding motor (2-3) and a double-output shaft speed reducer (2-7) connected with the feeding motor (2-3), the double-output shaft speed reducer (2-7) is fixedly arranged at the rear bottom end of the outer frame (3), and the two output shafts of the double-output shaft speed reducer (2-7) are arranged along the left-right direction; a supporting frame (2-5) is fixedly arranged at the rear of the outer frame (3); one sliding shaft (2-6) is fixedly arranged at the left and right ends of the supporting frame (2-5) respectively, the sliding shaft (2-6) is arranged obliquely from bottom to top and rearward, two sliding blocks (2-1) are slidably arranged on the sliding shaft (2-6), and the two sliding blocks (2-1) are fixedly connected through a lifting support plate (2-9); one connecting plate (2-8) is fixedly arranged on each of the left and right output shafts of the double-output shaft speed reducer (2-7), and the left and right connecting plates (2-8) are connected with the corresponding lifting support plates (2-9) through one movable connecting rod (2-4) respectively.

2. The improved sleeve auto-feeding apparatus according to claim 1, wherein: A groove for mounting the material conveying mechanism (1) is formed at the top rear end of the outer frame (3); the material conveying mechanism (1) comprises a driving synchronous wheel (1-2), a driven synchronous wheel, a conveying belt (1-1) and a servo motor (1-3); the driving synchronous wheel (1-2) and the driven synchronous wheel are rotatably arranged at the left and right outer sides of the outer frame (3) respectively, and the driving synchronous wheel (1-2) and the driven synchronous wheel are drivingly connected through the conveying belt (1-1), the servo motor (1-3) is fixedly arranged at the left outer side of the outer frame (3) and connected with the driving synchronous wheel (1-2), and the right end of the conveying belt (1-1) is a discharging end; the conveying surface of the conveying belt (1-1) is flush with the top surface of the outer frame (3).

3. The improved sleeve auto-feeding apparatus according to claim 2, wherein: A rear baffle (3-3) is fixedly arranged at the top of the outer frame (3) and at the rear side of the conveying belt (1-1); a left baffle (1-5) and a right baffle (1-4) are arranged above the left and right ends of the conveying belt (1-1) respectively, the left baffle (1-5) is fixedly arranged on the top surface of the outer frame (3), and a notch for the conveying belt (1-1) to pass through is formed at the bottom of the left baffle (1-5); the right baffle (1-4) is fixed to the front side of the rear baffle (3-3), and a gap for the sleeve (6) to pass through is arranged between the right baffle (1-4) and the conveying belt (1-1), the height of the gap is greater than the outer diameter of the sleeve (6) and less than the height of the sleeve (6).

4. The improved sleeve auto-feeding apparatus according to claim 3, wherein: A material falling slide (3-1) is fixedly arranged at the top right outer side of the outer frame (3) and at the front side of the conveying belt (1-1), the material falling slide (3-1) is arranged obliquely forward and downward, and the lower outlet of the material falling slide (3-1) is connected with the hopper (4); the right baffle (1-4) is arranged obliquely to the right front, and the left and right ends of the right baffle (1-4) are fixedly connected with the front side of the rear baffle (3-3) and the outer baffle of the material falling slide (3-1) respectively.

5. The improved sleeve auto-feeding apparatus according to claim 1, wherein: Three fixed material blocking plates (3-2) are arranged in the external frame (3) and spaced apart from front to back, and the three fixed material blocking plates (3-2) are all parallel to the plane where the left and right two sliding shafts (2-6) are located; the first fixed material blocking plate (3-2) is arranged spaced apart from the hopper (4), and the top surface of the first fixed material blocking plate (3-2) is higher than the bottom surface of the inner cavity of the hopper (4), and the rear part of the hopper (4) is arranged open.

6. The improved sleeve auto-feeding apparatus according to claim 5, wherein: The top rear end of each fixed material blocking plate (3-2) is fixedly provided with a fixed supporting plate (2-12), and the fixed supporting plate (2-12) and the bottom plate of the hopper (4) are both inclined downward rearward.

7. The improved sleeve auto-feeding apparatus according to claim 5, wherein: The feeding mechanism (2) further comprises two left and right symmetrical lifting bottom plates (2-10); the rear ends of the two left and right lifting bottom plates (2-10) are fixedly connected with the front ends of the two left and right lifting supporting plates (2-9) respectively; the front part of the lifting bottom plate (2-10) is fixedly provided with three lifting movable plates (2-2) that are spaced apart from front to back and gradually increase in height, and the three lifting movable plates (2-2) are all parallel to the fixed material blocking plates (3-2); the three lifting movable plates (2-2) are respectively arranged in the space between the adjacent two fixed material blocking plates (3-2) and the first fixed material blocking plate (3-2) and the hopper (4); when the feeding motor (2-3) drives the sliding block (2-1) to rise to the upper limit, the top surfaces of the three lifting movable plates (2-2) are all flush with the top surfaces of the three fixed material blocking plates (3-2); when the feeding motor (2-3) drives the sliding block (2-1) to descend to the lower limit, the top surface of the first lifting movable plate (2-2) is lower than the bottom surface of the inner cavity of the hopper (4).

8. The improved sleeve auto-feeding apparatus according to claim 7, wherein: The top rear end of each lifting movable plate (2-2) is fixedly provided with a lifting supporting plate (2-11), and the lifting supporting plate (2-11) is inclined downward rearward.

9. The improved sleeve auto-feeding apparatus according to claim 1, wherein: The bottom plate of the hopper (4) is hollow; the bottom of the hopper (4) is provided with a scrap storage box, the bottom surface of the scrap storage box is inclined forwardly downward, and the front side surface bottom end of the scrap storage box is provided with a scrap discharge port, and the lower part of the scrap discharge port is provided with a scrap guide plate (3-6).

10. The improved sleeve auto-feeding apparatus according to claim 9, wherein: The bottom front side of the external frame (3) is provided with a scrap receiving disc (5).

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